Altoona, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Altoona, a city in Eau Claire County, Wisconsin.
Overnight
56°F
Slight Chance Drizzle
A slight chance of drizzle. Cloudy, with a low around 56. East wind around 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Altoona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Slight Chance Drizzle | 10 mph E | 23% |
| Saturday | 62°F | Chance Drizzle | 5 to 10 mph ENE | 45% |
| Saturday Night | 53°F | Slight Chance Drizzle then Mostly Cloudy | 5 to 10 mph NE | 21% |
| Sunday | 67°F | Partly Sunny | 5 to 10 mph NE | 1% |
| Sunday Night | 45°F | Mostly Cloudy | 5 to 10 mph ENE | 0% |
| Monday | 64°F | Mostly Cloudy | 5 to 10 mph ENE | 1% |
| Monday Night | 41°F | Mostly Cloudy | 5 mph ENE | 1% |
| Tuesday | 64°F | Mostly Sunny | 5 mph E | 2% |
| Tuesday Night | 41°F | Mostly Clear | 0 to 5 mph E | 2% |
| Wednesday | 67°F | Sunny | 0 to 5 mph E | 1% |
| Wednesday Night | 44°F | Mostly Clear | 0 to 5 mph ESE | 2% |
| Thursday | 69°F | Mostly Sunny | 0 to 5 mph ESE | 4% |
| Thursday Night | 47°F | Partly Cloudy | 0 mph | 2% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph ESE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Altoona (44.800, -91.440). Updated through the day.
Growing snapshot for Altoona
Last spring frost
Apr 24
First fall frost
Oct 14
Growing season
170 days
Hardiness zone
4b
More local growing data for Altoona: nearby ZIP 54720 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Eau Claire 3Sw, Wi (4.1 mi from Altoona). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.